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Precalculus Sec 1.3 Find the equation of a given line

Precalculus Sec 1.3 Find the equation of a given line. Forms of a linear equation. 1. General Ax + By = C Slope-intercept y = mx + b Point Slope y - y 1 = m(x – x 1 ). Slope = -A/B Slope = m y intercept = b m = slope (x 1 , y 1 ) = point on line.

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Precalculus Sec 1.3 Find the equation of a given line

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  1. Precalculus Sec 1.3Find the equation of a given line

  2. Forms of a linear equation 1. General Ax + By = C Slope-intercept y = mx + b Point Slope y - y1 = m(x – x1) Slope = -A/B Slope = m y intercept = b m = slope (x1 , y1) = point on line • Find the equation of the line that contains (4,-1) and has a slope of 2.

  3. Find the equation of the line with a y intercept of 6 and parallel to the line 6x – 2y = 9

  4. Find the amount of time you can talk on the phone for $20. Telephone Bill Time Cost 10 .65 20 1.15 8 .55 35 1.90

  5. Find the equation of the perpendicular bisector of the line segment joining the points (7,9) and (3,-1).

  6. assignment • Page 16 • Problems 1 – 16 not ÷ 3

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